I will check them out. Thanks!
I will check them out. Thanks!
Custom Mirage products: Cruise control kit, Glove box light, MAF sensor housing, Rear sway bar, Upper grill block
Current project: DIY Nitrous oxide setup for ~$100
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View my fuel log 2015 Mirage DE 1.2 manual: 47.2 mpg (US) ... 20.1 km/L ... 5.0 L/100 km ... 56.7 mpg (Imp)
Over the last 45 years, I've done a lot of engine tune-ups; this is the first time I've heard of "tuning the belt". Unfortunately, I'm tone-deaf. Will I need to hire a piano tuner to check my belt tension?
Fummins (05-03-2019)
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View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)
The top row "vibration frequency" is the sound pitch, and the most acurate way of adjustment.
Mitsu dealers have a microphone in the MUT kit for the purpose, but simply playing the recording placed in the first post and adjusting to correct tone pitch is just as good.
If I didn't know how to do it, I'd probably do it like Fummins described. The end result is what counts.
Last edited by foama; 05-03-2019 at 04:28 PM.
Wayne (11-27-2022)
I wonder how different materials will affect the resonant frequency? Aftermarket suppliers probably won't be using the same stuff.
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View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)
I'm sure different materials will affect this, just as a nylon guitar string sounds different than a steel guitar string under the same tension.
But, I think Fummins has a good method, albeit potentialy dangerous. I've done the same thing when adjusting the belt tension on industrial machines, in combination with observing the belt vibration.
Anyway, I happened upon this thread while investigating a squeal and chirping coming from the drivers side of my car, but that's a subject for a different thread in a different forum.
So I just replaced the belt on my mirage (‘15 DE) and I just retightened the alternator bracket as tight as it could go( which was a lot shorter than the previous placement of the alternator). In order to even get the belt on I had a buddy of mine roll the belt onto the alternator as I bumped the starter. After a couple of times it slipped right on. The car does not squeak anymore when using the a/c, and it doesn’t squeak under WOT. Even though the belt seems to be on pretty tight, I’m gonna keep a 12mm in my car just in case it decides to slip off.